package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpRequest;
import org.springframework.util.DigestUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /**
     * 用户登录
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        // 员工查询
        LambdaQueryWrapper<Employee> lam = new LambdaQueryWrapper<Employee>();
        lam.eq(Employee::getUsername,employee.getUsername());
        Employee employee1 = employeeService.getOne(lam);

        // 判断 1 空 2 密码错误 3 禁用
        if(employee1==null){
            return R.error("登录错误");
        }
        if(!employee1.getPassword().equals(password)){
            return R.error("登录错误");
        }
        if(employee1.getStatus()==0){
            return R.error("此账号被禁用");
        }
        request.getSession().setAttribute("employee",employee1.getId());
        return R.success(employee1);
    }
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("提交的员工信息:{}",employee.toString());

        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
        // 当前操作数据的用户
        Long empId= (Long) request.getSession().getAttribute("employee");

//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);
        employeeService.save(employee);

        // 怎么处理呢
        return R.success("新增成功");
    }
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){

//        log.info("page = {},pageSize = {},name = {}" ,page,pageSize,name);
        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        //添加过滤条件
        queryWrapper.like(!StringUtils.isEmpty(name),Employee::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
//        long id1 = Thread.currentThread().getId();
//        log.info("线程id为：{}",id1);
        Long empId = (Long)request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
        employeeService.updateById(employee);
        long id = Thread.currentThread().getId();
        log.info("线程id为：{}",id);
        return R.success("员工信息修改成功");
    }

    /**
     * 查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
//        log.info("员工查询:{}",id);

        Employee employee = employeeService.getById(id);
        if(employee!=null){
            return R.success(employee);
        }
        return R.error("没有查询到该员工");
    }
//
}
